> Has anyone ever saw one intake manifold on a TR3A (59) run
> cold enough to collect condensation.
Sure, I've seen the manifold be wet from condensation. Usually the base of
the carb is wet too.
Both the air expanding as it passes the throttle plate into the manifold
vacuum, and the fuel vaporizing, absorb heat from the manifold. Under
certain conditions, it can actually lead to a condition called throttle
icing, where ice forms inside the carburetor. But the original TR3A setup
has the intake manifold bolted to the exhaust manifold, which I believe was
done to warm the intake and prevent icing. In my case, I removed those
bolts (studs). The TR6 has a water tube through the manifold, for the same
reason.
> Would a lack of gas cause this.
IMO, no.
> It appears that the
> car is not supplying enough as my glass fuel filter runs with
> a small stream (at times).
The fuel filter is sealed, it has no opening to the atmosphere. That means
that whatever air is inside it, stays inside it (unless of course the outlet
is above the level of the fuel). So, seeing air inside the filter tells you
nothing about whether the fuel supply is sufficient, or not.
If the supply were insufficient, I'd expect problems with the rear carb
first, since the fuel will fill the front float bowl first. At least when I
run out of gas, it's the rear carb that quits first.
> Took the top off last week to look at the diaphragm. All looked good.
That's odd, as the original TR3A carbs have no diaphragms. Sure you weren't
looking at the TR6 ?
<g>
Randall
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